A5102801267- Ferroelectric and Piezoelectric Materials
- Acoustic Wave Resonator Technologies
- Microwave Dielectric Ceramics Synthesis
- Multiferroics and related materials
- Immunotherapy and Immune Responses
- Advanced machining processes and optimization
- Advanced Surface Polishing Techniques
- Tunneling and Rock Mechanics
- Nanoplatforms for cancer theranostics
- Biometric Identification and Security
- Laser Material Processing Techniques
- Immune Response and Inflammation
- Dielectric materials and actuators
- Dielectric properties of ceramics
- Particle Accelerators and Free-Electron Lasers
- Pharmacological Effects of Natural Compounds
- Nanofabrication and Lithography Techniques
- Magnolia and Illicium research
- Electrodeposition and Electroless Coatings
- Cancer Research and Treatments
- Magnetic confinement fusion research
- Eosinophilic Disorders and Syndromes
- Macrophage Migration Inhibitory Factor
- Interstitial Lung Diseases and Idiopathic Pulmonary Fibrosis
- Complex Systems and Time Series Analysis
Inner Mongolia University
2024
Sichuan University
2019-2024
State Key Laboratory of Biotherapy
2024
West China Hospital of Sichuan University
2023
National Applied Research Laboratories
2020
Vitenparken
2019
We demonstrate a novel concept of domain engineering to simultaneously achieve outstanding piezoelectricity ( d 33 ∼ 191 pC N −1 ) and high Curie temperature T C 485 °C) in BF ceramics by adding elements with valence difference.
To advance the development of potassium sodium niobate (KNN)-based materials, devices, and their associated applications, this study introduces a collaborative approach to optimization materials devices for wide-temperature, high-resolution nondestructive testing (NDT) imaging. This is achieved through integration graded lead-free KNN-based ceramics wide-temperature-focused ultrasonic transducers. The KNN ceramics, featuring coexistence orthorhombic-tetragonal,...
The contributions to the piezoelectric coefficient d33 from intrinsic contribution, reversible low-field domain wall vibration, and irreversible switching displacement of walls have been quantitatively investigated in potassium sodium niobate (KNN) ceramics with different phase structures. By measuring at a large field hysteresis under subswitching conditions following Rayleigh relations, intrinsic/extrinsic reversible/irreversible responses are studied understand role boundaries enhancing...
Abstract Although KNN‐based ceramics with high electrical properties are obtained through a variety of strategies, the temperature sensitivity is still one key technical bottlenecks hindering practical applications. Here, we use new strategy, meticulously tailoring phase boundary, to refine ferroelectric boundary ceramics, leading piezoelectricity companied improving stability. The highest d 33 value in this system reaches 501 pC/N T C ∼ 240°C, whereas large strain ∼0.134% can be kept 10%...
The wide application of KNN-based lead-free piezoelectric ceramics is constrained by the contradictory relationship between its mechanical quality factor and constant. From an point view, searching for chemical composition with enhanced constant (d33) (Qm) one key points ceramics. In this work, d33 high Qm values were obtained solid solution method via a donor-acceptor codoping strategy. donor dopant Ho3+ refining domain size, while acceptor (Cu1/3Nb2/3)4+ improved formation defect dipoles....
An easy approach is suggested to obtain excellent piezoelectric performances in potassium sodium niobate (KNN)-based ceramics simultaneously with low dielectric loss (tanδ), high Curie temperature (TC), and electromechanical coupling factor (kp). Herein, a KNN-based system nonstoichiometric Nb5+ designed. Excessive occupying the B-site significantly influences microstructural features electrical properties of ceramics. Furthermore, excessive improves stability by providing domain wall...
Ultra-high precision machining is used intensively in the photonics industry for production of various optical components. Aluminium alloys have proven to be advantageous and are most commonly over other materials make Recently, increasing demand from systems aluminium with consistent material properties has led development newly modified grades produced by rapid solidification foundry process. These new characterised their finer microstructures refined mechanical physical properties....
The preferable antigen delivery profile accompanied by sufficient adjuvants favors vaccine efficiency. Mitochondria, which feature prokaryotic characteristics and contain various damage-associated molecular patterns (DAMPs), are easily taken up phagocytes simultaneously activate innate immunity. In the current study, we established a mitochondria engineering platform for generating antigen-enriched as cancer vaccine. Ovalbumin (OVA) tyrosinase-related protein 2 (TRP2) were used model...
The performance of potassium sodium niobate ((K, Na) NbO3, KNN)-based lead-free piezoelectric ceramics has significantly improved over the past decade. However, bottlenecks KNN-based cannot be ignored. Here, Nb2O5 precursor is obtained after thermal pretreatment, which can evidently improve properties and strain temperature stability ceramics. With help treated at 800 °C, optimal constant d33 303 pC/N, inverse d*33 378 pm/V, Curie TC 310 °C electromechanical coupling factor kp 42% are...
In recent years, plastic lenses have been widely adopted for optical components in consumer products because of the significant improvement microelectronics technology. Currently, are mass produced applications 3G/4G smart mobile phones, digital still/motion cameras, and micro-projectors. During production, one key factors costs reduction is to enhance lifetime molding tools. Electroless nickel phosphorus plating (Ni-P) most popular mold die surface treatment process its excellent...